Tennis star Caroline Wozniacki of Denmark watches her boyfriend Rory McIlroy of Northern Ireland play on the third hole during the second round of the DP World Tour Championship golf tournament in Dubai November 15, 2013. (Photo: Reuters)

Tennis player Caroline Wozniacki (R) of Denmark watches her boyfriend Rory McIlroy of Northern Ireland play on the second hole during the second round of the DP World Tour Championship golf tournament in Dubai November 15, 2013. (Photo: Reuters)

Manchester United and England footballer Michael Carrick and tennis star Caroline Wozniacki of Denmark watching Rory McIlroy during the second round of the 2013 DP World Tour Championship on the Earth Course at the Jumeirah Golf Estates on November 15, 2013 in Dubai, United Arab Emirates. (Photo: Getty Images)

Tennis star, Caroline Wozniacki of Denmark watching Rory McIlroy during the first round of the DP World Tour Championship, on the Earth Course at the Jumeirah Golf Estates on November 14, 2013 in Dubai, United Arab Emirates. (Photo: Getty Images)

Caroline Wozniacki of Denmark watching her boyfriend Rory McIlroy of Northern Ireland during the first round of the DP World Tour Championship, Dubai on the Earth Course at Jumeirah Golf Estates on November 14, 2013 in Dubai, United Arab Emirates. (Photo: Getty Images)

Tennis star, Caroline Wozniacki of Denmark watching Rory McIlroy during the first round of the DP World Tour Championship, on the Earth Course at the Jumeirah Golf Estates on November 14, 2013 in Dubai, United Arab Emirates. (Photo: Getty Images)

Caroline Wozniacki of Denmark watching her boyfriend Rory McIlroy of Northern Ireland during the first round of the DP World Tour Championship, Dubai on the Earth Course at Jumeirah Golf Estates on November 14, 2013 in Dubai, United Arab Emirates. (Photo: Getty Images)

Tennis star, Caroline Wozniacki of Denmark and Rory McIlroy of Northern Ireland after the first round of the DP World Tour Championship, on the Earth Course at the Jumeirah Golf Estates on November 14, 2013 in Dubai, United Arab Emirates. (Photo: Getty Images)

Tennis star, Caroline Wozniacki of Denmark watching Rory McIlroy during the first round of the DP World Tour Championship, on the Earth Course at the Jumeirah Golf Estates on November 14, 2013 in Dubai, United Arab Emirates. (Photo: Getty Images)

Tennis star, Caroline Wozniacki of Denmark and Rory McIlroy of Northern Ireland after the first round of the DP World Tour Championship, on the Earth Course at the Jumeirah Golf Estates on November 14, 2013 in Dubai, United Arab Emirates. (Photo: Getty Images)

Tennis star, Caroline Wozniacki of Denmark and Rory McIlroy of Northern Ireland after the first round of the DP World Tour Championship, on the Earth Course at the Jumeirah Golf Estates on November 14, 2013 in Dubai, United Arab Emirates. (Photo: Getty Images)

Caroline Wozniacki Enjoys Golf in Dubai

Tennis star Caroline Wozniacki of Denmark watches her boyfriend Rory McIlroy of Northern Ireland play on the third hole during the second round of the DP World Tour Championship golf tournament in Dubai November 15, 2013. (Photo: Reuters)